Magnitude 5.0, Thu Sep 23 2021 2:03 PM


Location history for this earthquake. The automatic earthquake location system makes many locations for each quake. Not all quakes have a location history.

Magnitude History


0.01.02.03.04.05.0Magnitude01Time since earthquake (hours)Magnitude Historyb

The magnitude history for this event. The most recent value is shown as a larger circle and also labeled: c: caution, g: good b: best (reviewed by a duty person).

Depth History


0100200300400500600Depth (km)01Time since earthquake (hours)Depth Historyb

The depth history for this event. The most recent value is shown as a larger circle and also labeled; c: caution, g: good b: best (reviewed by a duty person).

Origin History Map

Map of New Zealand.

Location History


Modification Time Quality Magnitude Depth Latitude Longitude
2021-09-23T04:02:43Z best 5.0 500.0 -24.31 -178.03
2021-09-23T02:08:57Z preliminary 4.3 399.1 -32.44 179.07
2021-09-23T02:08:57Z automatic 3.1 48.1 -36.50 177.22
2021-09-23T02:08:48Z automatic 3.1 48.1 -36.50 177.22
2021-09-23T02:08:46Z automatic 3.1 48.1 -36.50 177.22
2021-09-23T02:08:41Z automatic 3.1 48.1 -36.50 177.22
2021-09-23T02:08:37Z automatic 3.0 48.1 -36.50 177.22
2021-09-23T02:08:36Z automatic 3.0 48.1 -36.50 177.22
2021-09-23T02:08:32Z automatic 2.9 48.1 -36.50 177.22
2021-09-23T02:08:26Z automatic 3.0 48.1 -36.50 177.22
2021-09-23T02:08:26Z automatic 3.1 48.1 -36.50 177.22